21-03-2026 15:13
Lepista ZacariasHello everyone, Does any one know of any literatu
20-10-2017 09:23
Garcia SusanaEste otro crecía en el mismo trocito de madera qu
20-03-2026 16:16
Edvin Johannesen
These 0.5 mm diam. acervuli were breaking through
19-03-2026 19:34
Hello everyone,a few days ago I collected this str
19-03-2026 18:25
William Slosse
Good evening everyone, On 18/03/26 I found a few
17-03-2026 10:09
François Freléchoux
Bonjour, Voici la description rapide d'un petit d
19-03-2026 17:50
Hi to everybodyThese thiny, blackish pseudothecia
18-03-2026 13:09
Khomenko Igor
I recently examined Celtis occidentalis branches
Bois rougi
Michel RIMBAUD,
23-04-2018 12:06
Hier j'ai récolté ces petits disco sur feuillu décortiqué (peut-être Salix). C'est le bois rougi qui a attiré mon attention, j'ai pensé que ce serait un bon critère pour la détermination, mais je n'ai rien trouvé.
Fructifications de forme conique, diam 0,5 mm, marge festonnée en viellissant.
Extérieur gris, furfuracée de brun-jaunâtre. Hymenium brun olivacé.
Asques J- (Melzer), pas de croziers, 4,8 x 37µ.
Spores ovoïdes lisses, non septées, env. 1,6 x 4,5µ.
Quelqu'un a-t-il une piste de recherche à me suggérer ?
Michel.
Hans-Otto Baral,
23-04-2018 12:28
Re : Bois rougi
Yes, this is a Hyphodiscus, probably H. hymeniophilus. The asci should have a minute amyloid apical ring, but in Melzer the reaction can easily be suppressed, it is hemiamyloid, so either you must pretreat for some seconds in KOH and then test MLZ (after washing), or test IKI (Lugol).
the fungus has a conidial state (Phialophora-like: Catenulifera rhodogena) which also causes the red stain. The connection is proved, but Index F. does not show the connection.
the fungus has a conidial state (Phialophora-like: Catenulifera rhodogena) which also causes the red stain. The connection is proved, but Index F. does not show the connection.
Lothar Krieglsteiner,
23-04-2018 12:30
Re : Bois rougi
Hello Michel,
a track could perhaps be Hyphodiscus hymeniophilus
Best regards, Lothar
Michel RIMBAUD,
23-04-2018 16:07
Re : Bois rougi
Yes, great !
Thank you very much Zotto and Lothar.
Michel
Thank you very much Zotto and Lothar.
Michel






